Phonograph.



Patented Aug. 22, |899.

J. CHANIA.

PHONGRAPH.

(Application filed Sept, 14, 1898.)

(No Model.)

INVENTOR i WlTNESSES ATTORNEYS UNITEDA .STATES JOSEF CHANIA, OF LEMBRG,AUSTRIA-HUN GARY.

vPl-lo'luocRAPl-i.

SPECIFICATION forming part of Letters Patent No. 631,558, dated August22, 1899. Application iiled September 14, 1898. Serial No. 690,904. (Nomodel.)

To @ZZ whom it may concern:

Be it known that LJosnr CHANIA, a subject of the King of Roumania,residing in Lemberg, Galicia,Austria-Hungary,have invented certain newand useful Improvements in Phonographs, of which the following is aspecification.

The object of this invention is to provide an apparatus whereby soundsof any kind may be recorded through the medium of light-rays which areso controlled relatively to the waves of sound that they are subjectedto the iniiuence of the latter and their intensity more or less variedand whereby the recorded matter may be subsequently delivered, alsothrough the medium of light-rays, under whose influence there is anelectric circuit controlling a sound-transmitting diaphragm.

In view of the foregoing objects -the first part of the inventionconsists in an apparatus wherebya record is made of the variations inintensity of light-rays, said variations being eifected by the action ofsound-waves, and the second part of the invention consists in anapparatus whereby the recorded matter is delivered through the medium oflight-rays and an electrically-controlled sound-transmitting diaphragmunder the iniiuence of said light-rays. l

In the accompanying drawings, Figure lis a sectional view of anapparatus embodying the first part of my invention, and Fig. 2 is asimilar View of an apparatus embodying the second part of my invention.

In said drawings, referring particularly to Fig. l, d designates a casewherein is arranged a tube b, which penetrates one of the side walls ofsaid easev and which is provided at its outer end with a suitablemouthpiece.

c indicates a reflector which is disposed in alinemeht with the innerend of the tube b, being preferably secured to the opposite wall of thecase, and which is of such character that sound-waves thrown against itfrom the tube b, whereby they are transmitted into the apparatus, willeffect sufficiently appreciable vibrations thereof to produce thedesired results.

d designates another reflector, which is (if desired, adjustably)secured to a third wall of the case in such a position that a lightthrown upon it can be reflected therefrom tothe refiector c. yfdesignates a source of light which is so fdisposed that its rays can bethrown upon the `reiector d and from thence transferred to the reflectoro, Where they will be again reflected. llc represents a partition whichis arranged in said case ot and which forms a compartment thereindistinct from the main portion of said case. The compartment thus formedis situated in line with the rays which are thrown from the reflector c,and the wall adjacent to said reflector is inclined substantially atright angles to the line of said rays and is provided with an orificewherein is arranged a lens g, through which said rays are adapted topass and whereby they are focused.

h is a small case wherein is contained a sensitized strip similar tothat used for photographic purposes, said strip being passed over anauxiliary roller i and being adapted .to be ultimately wound upon aroller i. It should be remarkedthat the auxiliary roller z' is sodisposed relatively to the lens g that the focus of the rays from saidlens will be coincident with the sensitized surface of the strip passingover said auxiliary roller. In .order that no light may leak into thecompartment wherein is contained the sensitized strip, a conical shieldZ is secured to the inclined wall of the partition about the openingformed therein for the lens and projects into 'contiguity to said strip.It will be seen that in the use of the apparatus just described andconstituting the firsty part of my invention light-rays will beultimately transmitted from the source of light f onto the sensitizedstrip in concentrated condition and that the desired record may beproduced on said sensitized strip by sound-waves which maybe thrown ontothe reiiector c, in-

tercepting to a more or less extent'the lightrays which coincidentallytherewith meet the l reector and effecting vibrator-y action of saidreiiector, the result being variations in the action of the light-raysfocused onto the sensitized strip.

In the apparatus constituting the second y part of my invention I haveprovided a case a', comprising, preferably, four compartments,

one of which is in communication, as and for IOO the purposeshereinafter described, with two of the others. In one of saidcompartments is placed a reflector d', which is situated in oppositionto an opening therein that communicates with another compartment. Insaid opening is situated a lens t', and between said lens and thereflector CZ is suitably arranged a source of light j".

In the compartment between which and the one just described is disposedthe lens t' a casing h' is situated, said casing being adapted toreceive the sensitized strip upon which the record has been placed bythe apparatus constituting the rst part of my invention and which is fedfrom a roller fr over an auxiliary roller r', the latter being arrangedin proximity to the lens 2 and so that the rays of light passing throughthe latter will be focused by it onto the sensitized strip and incoincidence with the matter thereon recorded.

A conical shield m is arranged about the opening for the lens, saidconical shield being provided for the same purpose as the similar devicehereinbefore described. Said conical shield may comprise a portion ofthe partition between the compartment containing the sensitized stripand another compartment not heretofore particularly referred to, saidpartition having an opening for the reception of a tube fa, and saidopening and the tube being so situated that any light redected off ofthe surface of the sensitized strip may be transmitted through said tubeinto the compartment adjoining the one in which the sensitized strip isarranged and with which said tube communicates.

a: at designate a'divided arbor, which is journaled in the compartmentlast particularly referred to and which is rotated by any suitablemechanism, as by clockwork 7a2. Saidarbor carries a sheave 7;, whichcomprises a pair of disks, between which are disposed concentrically aseries of strips or blocks of selen 752, which are supported byinsulations s. The sheave just referred to is so disposed relatively tothe tube n that light transmitted through said tube will be successivelythrown onto the selen strips as the arbor is rotated. It should befurther remarked that the disks of the sheave 7c are respectivelycarried by the divided portions of the arbor.

fu designates an electrical circuit having a source of electrical energyat q and including the divided arbor ce fc and the sheave 7c and anelectromagnet e, which is situated in the fourth compartment of thecase. Said electromagnet is adapted to control a diaphragm p, whichconstitutes the armature thereof and which is situated in an openingformed in an outer wall of said compartment.

t denotes a funnel-shaped shell surrounding the opening wherein thediaphragm p is arranged, said shell being provided for an obviouspurpose.

In view of the above description of the apparatus constituting thesecond part of my invention it will be seen that the light thrown fromthe reflector (Z through the lens 2 and by the latter concentrated onthe record will be reflected olf the surface of said sensitized stripand thrown onto the selen strips of therevolvingsheave. The variationsin the record will effect variations in the action of the rays on therevolving selen strips,and consequently produce in them a greater orless resistance to the electric current in the circuit of which saidstrips form a part, according tothe wellknown quality of selen under theaction of light. The variations in the electric current will effect theintermittent energization of the electromagnet e, whereupon thediaphragm p will be actuated and sounds produced.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

1. In a sound-recording apparatus,the combination with a source oflight,a movable sensitized body, a vibratory reflector adapted totransmit the rays of light from the source thereof to the sensitizedbody, and means for projecting sound-waves onto said reflectorat pointscoincident with the points of impact of the light-rays therewith,substantially as described.

2. In a sound-recordin g apparatus,the combination of a source of light,a movable sensitized body, a vibratory reflector adapted to transmit therays of light from the source thereof to the sensitized body, a lensdisposed between said vibratory reiiector and said sensitized body andadapted to concentrate the rays on the latter, and means for projectingsound-waves onto saidreiiector at points coincident with the points ofimpact of the lightrays therewith, substantially as described.

3. Inasound-deliveringapparatus,thc combination with a source of light,a suitable body having the record to be delivered on its surface, and anelectric circuit including a sounding device and a series of variablercsistance devices, the light being adapted to be transmitted from itssource onto the record and thence to the variable resistance dcvices,substantially as described.

4t. In a sound-delivering apparatus,a source of light, a suitable bodyhaving the record to be delivered on its surface, and an electriccircuit including a solunding device and a strip or strips of selenjthelight being adapted to be transmitted from its source onto the recordand thence to the selen strip or strips, substantially as described.

5. In a sound-delivering apparatus,a sou ree of light, a suitable bodyhaving the record to be delivered on its surface, an electric circuitincluding a sounding device and a series of selen strips, the lightbeing adapted to be transmitted from the record toward said selenstrips, and means for moving said selen strips successively across thepath of the light, substantially as described.

6. In a sound-deliveringapparatus,a source of light, a suitable bodyhaving the record to be delivered on its su rfacc, a reflector for IIOalso included in said circuit, and a soundproducing diaphragm controlledby said electromagnet, substantially as described.

In Witness whereof I have hereunto signed 15 my name, this 28th day ofJuly, 1898, in the presence of two subscribing'witnesses.

JOSEF CHANIA.

Witnesses:

HENRY C. CARPENTER, RD. HERBERT RUST.

